Title

Avaliação Eletroquímica da Resistência à Corrosão de Filmes de Ti Depositados por Magnetron-Sputtering em Aços ABNT 4340 e 1020

Authorship

MITTELSTADT, F.G.; FRANCO, C.V.; FONTANA, L.C.; ANTONIO, M.G. DEL; FIGUEIRA, D.S.; MUZART, J.; BILAC, S.

MITTELSTADT, F.G.

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FRANCO, C.V.

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FONTANA, L.C.

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ANTONIO, M.G. DEL

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FIGUEIRA, D.S.

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MUZART, J.

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BILAC, S.

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DOI

10.5151/2594-5327-48v1-173-178

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Abstract

Samples of ABNT 4340 and 1020 steel were magnetron sputtering coated with titanium films and tested with electrochemical scan to evaluate the corrosion behavior of the layers. It was noted that there is an improvement in the potentiodynamic scan of the samples, indicating that the Ti coating increases the corrosion resistance of the steel surface. However, the presence of pinholes in the titanium layers compromises the best performance of the layers. The electrochemical test can be used as a quality control method for the coating.

Keywords

magnetron-sputtering, titânio, resistência à corrosão, filmes finos, aços ABNT